cavalierly

He cavalierly dismissed her concerns.

She cavalierly ignored the rules and did as she pleased.

The manager cavalierly rejected the proposal without considering its merits.

He cavalierly made promises he knew he couldn't keep.

She cavalierly brushed off the criticism and continued with her work.

The company cavalierly disregarded the safety regulations, putting workers at risk.

He cavalierly assumed he would win the competition without putting in much effort.

She cavalierly spent all her money without thinking about the consequences.

The politician cavalierly dismissed the concerns of the citizens, leading to public outrage.

He cavalierly made jokes about a serious matter, offending those around him.